Patents by Inventor Liam Michael Devlin

Liam Michael Devlin has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Integrated transceiver circuit packaged component
    Patent number: 5930686
    Abstract: An integrated transceiver circuit packaged component including a transceiver circuit having a bandstop filter (29) provided therein for filtering both the received and transmitted signals to remove unwanted components therefrom.
    Type: Grant
    Filed: February 19, 1997
    Date of Patent: July 27, 1999
    Assignee: Marconi Electronic Systems Limited
    Inventors: Liam Michael Devlin, Brian Jeffrey Buck
  • Switching arrangement with combined attenuation and selection stage
    Patent number: 5648740
    Abstract: A switching arrangement for establishing a signal path between any one of a plurality of first ports and a common port and for varying the attenuation of at least one of the ports comprises in the signal path of each attenuatable port a first switching element and attenuating circuitry connectable by further switching circuitry across the first switching element, the first switching element constituting the sole series element in that path. The attenuating circuitry comprises a resistive network and the further switching circuitry comprises second switching elements connected to respective ends of the first switching element and to respective points of the resistive network for introducing one of a number of resistive states into the signal path.
    Type: Grant
    Filed: October 5, 1995
    Date of Patent: July 15, 1997
    Assignee: GEC-Marconi Limited
    Inventors: Liam Michael Devlin, Brian Jeffrey Buck